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Characterization of Cu-(Ag, Au)/CrAl3O6 Methanol Synthesis Catalysts by TOF-SIMS and SEM-EDS Techniques

Maniecki T. P., Mierczyński P., Bawolak K., Leśniewska E., Rogowski J., Jóźwiak W. K.

Polish Journal of Chemistry

2009

Vol. 83, nr 9

1643-1651

Characterization of bimetallic Cu-Ag and Cu-Au catalytic systems supported on CrAl3O6 was carried out by TOF-SIMS, XRD and SEM-EDS techniques. The evidence of alloying of copper and second metal was observed during catalyst reduction as well as methanol syntheis reaction. The promoting effect of noble metal catalysts on copper catalyst was noticed. Modification by gold or silver improves activity up to ten times.